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This paper analyzes the influences of displacement sensor noise on the power amplifiers of active magnetic bearing systems in both current and voltage control schemes. An effective evaluation index has been proposed to guarantee that the comparison is meaningful and fair enough to both control schemes. In addition, an appropriate controller is designed for each control scheme, while each controller...
A new type of PMSM with double rotors, used in underwater vehicle, makes the propulsion devices become simpler and more efficient. The structure of this motor is greatly different with the conventional ones, and the study of control strategy for this motor is on the primary stage. In this paper, the structure of the motor which is used in underwater vehicle system is introduced. To control the speed...
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